Wanted to move my Echo Dot up onto my pegboard wall to clear up more workspace. Took the two models linked below and merged them so that I could do so. The result was a bit difficult to remove supports from, but looks great and functions well.
The image shown here is printed in Bambu PLA-CF with Bambu PLA support as the interface for supports. I didn't pay a bunch of attention to support settings and ended up with supports on the rear of the sphere base that are difficult to remove. You may want to adjust your support settings to make support removal easier.
The author remixed this model.
The base for the dot was made solid in the rear, and was made shorter, so the pegs could be angled enough to go into the wall. The pegs from the shelf were made slightly more narrow, because they were too wide for my pegboards holes.